// 
// DotNetNuke?- http://www.dotnetnuke.com 
// Copyright (c) 2002-2011 
// by DotNetNuke Corporation 
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated 
// documentation files (the "Software"), to deal in the Software without restriction, including without limitation 
// the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and 
// to permit persons to whom the Software is furnished to do so, subject to the following conditions: 
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// The above copyright notice and this permission notice shall be included in all copies or substantial portions 
// of the Software. 
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED 
// TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
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using System;
using System.Data;
using DotNetNuke;

namespace CharityGamesOnline.Modules.Charity
{

    /// ----------------------------------------------------------------------------- 
    /// <summary> 
    /// An abstract class for the data access layer 
    /// </summary> 
    /// <remarks> 
    /// </remarks> 
    /// <history> 
    /// </history> 
    /// ----------------------------------------------------------------------------- 
    public abstract class DataProvider
    {

        #region "Shared/Static Methods"

        /// <summary>
        /// singleton reference to the instantiated object 
        /// </summary>
        private static DataProvider objProvider = null;

        /// <summary>
        /// constructor
        /// </summary>
        static DataProvider()
        {
            CreateProvider();
        }

        /// <summary>
        /// dynamically create provider 
        /// </summary>
        private static void CreateProvider()
        {
            objProvider = (DataProvider)DotNetNuke.Framework.Reflection.CreateObject("data", "CharityGamesOnline.Modules.Charity", "");
        }

        /// <summary>
        /// return the provider 
        /// </summary>
        /// <returns></returns>
        public static DataProvider Instance()
        {
            return objProvider;
        }

        #endregion

        #region "Abstract methods"

        public abstract IDataReader GetCharities(int PortalID, int EventID);
        public abstract IDataReader GetCharity(int PortalID, int CharityID);
        public abstract void SaveCharity(int CharityID, int PortalID, int UserID, int Status, string Name, string Description, 
                                         string Contact,string WebSite, string Email, string Telephone, string Fax, string Address, 
                                         string Category, string ImageURL, string ImageType, int ImageWidth,int ImageHeight, bool ImageDisplay);
        public abstract void DeleteCharity(int PortalID, int CharityID);

        #endregion

    }
}